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20917 (5016 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020917
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074128865890362 3.6258e-08  
a 2.199418826380061 8.0862e-09 au
q 1.963172901420309 7.9531e-08 au
i 4.919311293681848 4.2271e-06 deg
node 14.27460816284378 5.1523e-05 deg
peri 205.8993739513126 5.6653e-05 deg
M 312.3750379014645 2.5698e-05 deg
tp 2459358.113160029487
(2021-May-23.61316003)
8.5349e-05 TDB
period 1191.407512161779
3.26
6.5703e-06
1.799e-08
d
yr
n .3021636143176478 1.6664e-09 deg/d
Q 2.435664751339814 8.9548e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1207  
   data-arc span      22083 days (60.46 yr)  
   first obs. used      1960-09-28  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52093  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:34:41  

Additional Information
 Earth MOID = .95572 au 
 Jupiter MOID = 2.53623 au 
 T_jup = 3.654 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.27   n/a E2021B10  

20917 (5016 P-L)          Discovered 1960-Oct-22 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 5016 P-L = 2198 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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